Sphere Online Judge (SPOJ)

list of classical problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
9888	Bird tree	1	297	65.18	34 42
9889	Movie collection	1	213	43.40	50 50
9890	Piece it together		94	24.01
9891	Please, go first		215	54.01	26 17
9892	Pool construction	1	90	56.90	1 34
9893	Smoking gun		40	27.98
9894	Tichu	2	78	38.41	26 17
9895	Tracking RFIDs		52	31.94
9896	Train delays		44	25.40
9916	Help Dr Whooves	2	54	51.28	17 34
9921	ABC Path	160	7535	21.77	15 12
9934	Alice and Bob	1	145	33.39	1 34
9935	Break the Chocolate	15	1647	34.57	4 17
9936	Construct the Great Wall		9	41.67
9938	Disney Fastpass	1	33	24.12	17 17
9939	Eliminate the Conﬂict	1	48	40.53	17 17
9940	Fruit Ninja		39	26.73
9941	GRE Words	2	110	20.51	34 34
9942	Holiday Accommodation	30	1073	26.07	23 25
9943	Isabella Message	1	67	24.08	17 17
9944	Ji-Tu Problem		14	11.28
9948	Will it ever stop	119	17789	43.08	4 9
9950	IQ Team		37	41.59	50 50
9952	111…1 Squared	8	1780	46.31	5 10
9964	Fibonacci vs Polynomial	6	126	40.67	24 34
9967	Playing with Words	2	37	32.99	34 26
9968	Magic Crystals and Laser Beams		179	23.48
9969	Road Network	1	307	22.14	17 9
9970	The Egyptian Parliament		49	18.84
9971	Adventurous Chess Masters		20	24.79
9972	The SKey	1	83	16.55	17 26
9973	Problem Set Score	4	915	39.49	12 17
9974	Men From Mars		22	39.66
9975	No Stories Any More!	1	46	29.02	34 34
9985	Distance	2	61	24.14	42 34
10050	Power Tower City	7	115	69.03	26 29
10070	Trick or Treat	2	243	67.01	17 17
10071	Working at the Restaurant		32	37.78
10072	Lights	1	60	47.17	17 34
10073	Darts	1	35	62.86
10074	Genetics		9	33.33
10075	Haunted Graveyard	2	41	19.47	26 26
10076	Slalom		30	34.44
10077	Routing		15	38.64
10078	Happy Telephones	2	292	48.69	1 1
10079	Stammering Aliens	1	142	31.84	17 17
10080	Lawn Mower	4	228	52.22	12 6
10081	Periodic Points		12	40.00
10082	Comparing Answers		58	12.67
10084	Fake Scoreboard		23	45.21

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